已结贴√

问题点数：40 回复次数：3

能帮我看看这个子弹的坐标哪里错了吗

我的这个坦克哪里错了啊

运行坦克可以正常移动，但是子弹的坐标老是错误，子弹也飞不出去，到底是哪里错了啊，检查很久了

package unfinished;

import javax.swing.*;

import java.awt.*;

import java.awt.event.*;

public class TryTank

{

MyPanel my;

JFrame jf;

public static void main(String[] args)

{

TryTank tr = new TryTank();

}

public TryTank()

{

jf = new JFrame("我的坦克大战");

my = new MyPanel();

jf.addKeyListener(my);

Thread t2 = new Thread(my);

t2.start();

my.setBackground(Color.black);

jf.add(my);

jf.setVisible(true);

jf.setSize(400,300);

jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

}

}

class MyPanel extends JPanel implements KeyListener,Runnable

{

Mine t;

public MyPanel()

{

t = new Mine(10,10);

}

public void paint(Graphics g)

{

super.paint(g);

t.setType(2);

t.setSpeed(4);

this.paintTank(t.getX(), t.getY(), g, t.getDirect(), t.getType());

if(t.b != null&&t.b.isAlive == true)

{

t.b.setSpeed(2);

g.fillOval(t.b.getX(), t.b.getY(), 2, 2);

}

}

//画坦克

public void paintTank(int x, int y, Graphics g, int direct, int type)

{

//判断颜色，1是敌人，黄色。2是自己，红色

if(type == 1)

{

g.setColor(Color.YELLOW);

switch(direct)

{

case 1:

g.fill3DRect(x, y,5,30,false);

g.fill3DRect(x+5,y+5,10,20,false);

g.fill3DRect(x+15,y,5,30,false);

g.fillOval(x+4,y+10,10,10);

g.drawLine(x+9,y+15,x+9,y-4);

break;

case 2:

g.fill3DRect(x, y,30,5,false);

g.fill3DRect(x+5,y+5,20,10,false);

g.fill3DRect(x,y+15,30,5,false);

g.fillOval(x+10,y+5,10,10);

g.drawLine(x+15,y+10,x+34,y+10);

break;

case 3:

g.fill3DRect(x, y,5,30,false);

g.fill3DRect(x+5,y+5,10,20,false);

g.fill3DRect(x+15,y,5,30,false);

g.fillOval(x+4,y+10,10,10);

g.drawLine(x+9,y+15,x+9,y+34);

break;

case 4:

g.fill3DRect(x, y,30,5,false);

g.fill3DRect(x+5,y+5,20,10,false);

g.fill3DRect(x,y+15,30,5,false);

g.fillOval(x+10,y+5,10,10);

g.drawLine(x+15,y+10,x-4,y+10);

}

}

else if(type == 2)

{

g.setColor(Color.RED);

switch(direct)

{

case 1:

g.fill3DRect(x, y,5,30,false);

g.fill3DRect(x+5,y+5,10,20,false);

g.fill3DRect(x+15,y,5,30,false);

g.fillOval(x+4,y+10,10,10);

g.drawLine(x+9,y+15,x+9,y-4);

break;

case 2:

g.fill3DRect(x, y,30,5,false);

g.fill3DRect(x+5,y+5,20,10,false);

g.fill3DRect(x,y+15,30,5,false);

g.fillOval(x+10,y+5,10,10);

g.drawLine(x+15,y+10,x+34,y+10);

break;

case 3:

g.fill3DRect(x, y,5,30,false);

g.fill3DRect(x+5,y+5,10,20,false);

g.fill3DRect(x+15,y,5,30,false);

g.fillOval(x+4,y+10,10,10);

g.drawLine(x+9,y+15,x+9,y+34);

break;

case 4:

g.fill3DRect(x, y,30,5,false);

g.fill3DRect(x+5,y+5,20,10,false);

g.fill3DRect(x,y+15,30,5,false);

g.fillOval(x+10,y+5,10,10);

g.drawLine(x+15,y+10,x-4,y+10);

}

}

}

@Override

public void keyTyped(KeyEvent e)

{

}

@Override

public void keyPressed(KeyEvent e)

{

//设置WASD为移动

if(e.getKeyCode() == KeyEvent.VK_W)

{

t.setDirect(1);

t.moveUp();

}

else if(e.getKeyCode() == KeyEvent.VK_D)

{

t.setDirect(2);

t.moveRight();

}

else if(e.getKeyCode() == KeyEvent.VK_S)

{

t.setDirect(3);

t.moveDown();

}

else if(e.getKeyCode() == KeyEvent.VK_A)

{

t.setDirect(4);

t.moveLeft();

}

if(e.getKeyCode() == KeyEvent.VK_J)

{

t.fired();

}

this.repaint();

}

@Override

public void keyReleased(KeyEvent e)

{

}

@Override

public void run()

{

try

{

Thread.sleep(100);

} catch (InterruptedException e)

{

// TODO Auto-generated catch block

e.printStackTrace();

}

this.repaint();

}

class Tank

{

int x = 10, y = 10;

public Tank(int x, int y)

{

this.x = x;

this.y = y;

}

public int getX()

{

return x;

}

public void setX(int x)

{

this.x = x;

}

public int getY()

{

return y;

}

public void setY(int y)

{

this.y = y;

}

}

class Mine extends Tank

{

int type = 0,direct = 1,speed =1;

Bullet b;

public Mine(int x, int y)

{

super(x,y);

}

public int getType()

{

return type;

}

public void setType(int type)

{

this.type = type;

}

public int getDirect()

{

return direct;

}

public void setDirect(int direct)

{

this.direct = direct;

}

public int getSpeed()

{

return speed;

}

public void setSpeed(int speed)

{

this.speed = speed;

}

//坦克移动

public void moveUp()

{

y-=this.getSpeed();

}

public void moveRight()

{

x+=this.getSpeed();

}

public void moveDown()

{

y+=this.getSpeed();

}

public void moveLeft()

{

x-=this.getSpeed();

}

//开火

public void fired()

{

switch(this.direct)

{

case 1:

b = new Bullet(x+10,y,1);

case 2:

b = new Bullet(x+30,y+10,2);

case 3:

b = new Bullet(x+10,y+30,3);

case 4:

b = new Bullet(x,y+10,4);

}

Thread t1 = new Thread(b);

t1.start();

}

}

class Bullet implements Runnable

{

int x = 10, y = 10,speed = 1,direct = 1;

boolean isAlive = true;

public Bullet(int x, int y,int direct)

{

this.x = x;

this.y = y;

this.direct = direct;

}

public int getX()

{

return x;

}

public void setX(int x)

{

this.x = x;

}

public int getY()

{

return y;

}

public void setY(int y)

{

this.y = y;

}

public int getSpeed()

{

return speed;

}

public void setSpeed(int speed)

{

this.speed = speed;

}

public int getDirect()

{

return direct;

}

public void setDirect(int direct)

{

this.direct = direct;

}

public void run()

{

while(true)

{

try

{

Thread.sleep(50);

} catch (InterruptedException e)

{

// TODO Auto-generated catch block

e.printStackTrace();

}

switch(this.direct)

{

case 1:

y-=this.getSpeed();

break;

case 2:

x+=this.getSpeed();

break;

case 3:

y+=this.getSpeed();

break;

case 4:

x-=this.getSpeed();

break;

}

System.out.println("["+x+","+y+"]");

//            if(x<0||x>400||y<0||y>300);

//            {

//                isAlive = false;

//                break;

//            }

}

}

}

}